Sound generating appliance



FIG. 1 is a top plan view of a sound generating appliance showing my design;

FIG. 2 is a front end elevation thereof;

FIG. 3 is a rear end elevation thereof;

FIG. 4 is a right side elevation thereof;

FIG. 5 is a left side elevation thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a sound generating appliance, as shown and described. 